Hello All,
I’m facing an issue with MCBs tripping during computer startup and would appreciate your technical insights. Here are the details:
Case 1:
We have a sub-circuit MCB C32 supplying power to 8 desktop PCs. Occasionally, the breaker trips immediately after startup.
Case 2:
At another location, 30 PCs are connected across two sub-circuit MCBs (C32 each), with the main distribution panel protected by an MCB C100. Here, the main breaker trips immediately after startup, sometimes with a visible spark. The sub-circuit breakers also trip occasionally.
Observations:
Current measurements show a significant spike during startup before tripping occurs.
When PCs are completely disconnected from power (by unplugging their power cords ), no tripping issues occur.
Questions:
1. Is this behavior likely caused by excessive inrush current during PC startup?
2. What are the recommended solutions to prevent these nuisance trips?
Best regards,
I’m facing an issue with MCBs tripping during computer startup and would appreciate your technical insights. Here are the details:
Case 1:
We have a sub-circuit MCB C32 supplying power to 8 desktop PCs. Occasionally, the breaker trips immediately after startup.
Case 2:
At another location, 30 PCs are connected across two sub-circuit MCBs (C32 each), with the main distribution panel protected by an MCB C100. Here, the main breaker trips immediately after startup, sometimes with a visible spark. The sub-circuit breakers also trip occasionally.
Observations:
Current measurements show a significant spike during startup before tripping occurs.
When PCs are completely disconnected from power (by unplugging their power cords ), no tripping issues occur.
Questions:
1. Is this behavior likely caused by excessive inrush current during PC startup?
2. What are the recommended solutions to prevent these nuisance trips?
Best regards,
